Question

我是neo4j和cypher的新手，如果需要改进我的问题，请告诉我，我将尝试使其更加有意义。

我有一个.csv格式的数据集，包含1000行。我已经在neo4j本地主机中使用cypher导入了该数据集。 fromacc。这是样本数据集图像

列toacc和timestamp包含重复的值。我想绘制在边和节点中显示amount和fromacc的{{1}}和toacc的连通图。

我已附上图表的图像：

我写的查询是：

   LOAD CSV WITH HEADERS FROM "file:///datanew.csv"As row CREATE (demo:demo 
   {blockid:toInteger(row.id),blockhas:row.hash,txnid:row.txs,
   frmacc:row.frmacc,toacc:row.toacc,amount:toInteger(row.amount)})
   Create (p:demo{frm:demo.frmacc})-[r:transferred]- > 
   (q:demo{toa:demo.toacc})  return r

但是我只有一个节点重复连接到另一个节点。

任何人都可以帮助我在上图中获得所需的图形。预先感谢。

数据：

   id   hash    time_stamp  txs from    to  amount
   0    hash1   1231006505  1   685031  97258   65536
   1    hash2   1231469665  1   761055  97260   65536
   2    hash3   1231469744  1   2039922 97261   1000000
   3    hash4   1231470173  1   2271509 584573  3000000
   4    hash5   1231470988  1   2271510 584574  3000000
   5    hash6   1231471428  1   2271511 584577  3000000
   6    hash7   1231471448  2   685031  16785   1000000
   7    hash8   1231471478  1   685031  97258   677888
   8    hash9   1231471498  2   97258   685031  567890
   9    hash0   1231471444  1   97258   584577  100000

Here "from" and "to" represents nodes "A,B" in the the graph I plotted and attached                 
In the vertices amount,timestamp should be mentioned

Answer 1

如果row.id是节点之间关系的标识符，则对于每个row，您首先需要创建一对节点，然后在它们之间创建关系，然后设置关系属性。使用merge代替create来每次都不创建新节点。例如：

UNWIND [{id:0,hash:"hash1",time_stamp:1231006505,txs:1,from:685031,to:97258,amount:65536},
{id:1,hash:"hash2",time_stamp:1231469665,txs:1,from:761055,to:97260,amount:65536},
{id:2,hash:"hash3",time_stamp:1231469744,txs:1,from:2039922,to:97261,amount:1000000},
{id:3,hash:"hash4",time_stamp:1231470173,txs:1,from:2271509,to:584573,amount:3000000},
{id:4,hash:"hash5",time_stamp:1231470988,txs:1,from:2271510,to:584574,amount:3000000},
{id:5,hash:"hash6",time_stamp:1231471428,txs:1,from:2271511,to:584577,amount:3000000},
{id:6,hash:"hash7",time_stamp:1231471448,txs:2,from:685031,to:16785,amount:1000000},
{id:7,hash:"hash8",time_stamp:1231471478,txs:1,from:685031,to:97258,amount:677888},
{id:8,hash:"hash9",time_stamp:1231471498,txs:2,from:97258,to:685031,amount:567890},
{id:9,hash:"hash0",time_stamp:1231471444,txs:1,from:97258,to:584577,amount:100000}] AS row

MERGE (F:demo {id: row.from})
MERGE (T:demo {id: row.to})
MERGE (F)-[r:transferred {id: row.id}]->(T)
SET r.hash = row.hash,
    r.time_stamp = row.time_stamp,
    r.txs = row.txs,
    r.amout = row.amout

RETURN F, T, r

neo4j中使用密码的双向连通图

1 个答案: